Home / 1,768.10-2,439.87-1,022.09

Finding the Fourth Proportional to 1,768.10, 2,439.87 and 1,022.09

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Solution

The fourth proportional to 1,768.10, 2,439.87 and 1,022.09 is: 1,410.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.10 : 2,439.87 = 1,022.09 : x
  2. Step 2: Convert to fraction form
    1,768.10/2,439.87 = 1,022.09/x
  3. Step 3: Cross multiply
    1,768.10x = 2,439.87 × 1,022.09
  4. Step 4: Simplify right side
    1,768.10x = 2,493,754.53
  5. Step 5: Solve for x
    x = 2,493,754.53/1,768.10
  6. Step 6: Final answer
    x = 1,410.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.